| Strain | Pseudomonas entomophila L48 |
| GI | 104784013 |
| Locus Tag | PSEEN5097 |
| Description | urocanate hydratase |
| Strain | Pseudomonas putida BIRD-1 |
| GI | 386014303 |
| Locus Tag | PPUBIRD1_4821 |
| Description | protein HutU |
| Strain | Pseudomonas fluorescens Pf0-1 |
| GI | 77456588 |
| Locus Tag | Pfl01_0360 |
| Description | urocanate hydratase |